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Table 3 Cycle slip statistics for GPS, GLONASS, Galileo, and BDS signals tracked by the two GNSS receivers in the experiment during period 1

From: Impact of China’s high speed train window glass on GNSS signals and positioning performance

GNSS

Used observations for cycle detection

Receiver 1 (without glass)

Receiver 2 (with glass)

GPS

C1C-C2W/L1C-L2W

7

49

C1C-C2X/L1C-L2X

4

96

C1C-C5X/L1C-L5X

4

57

GLONASS

C1C-C2C/L1C-L2C

8

230

C1P-C2P/L1P-L2P

16

159

Galileo

C1X-C5X/L1X-L5X

7

45

C1X-C7X/L1X-L7X

5

46

C1X-C8X/L1X-L8X

4

44

BDS

C2I-C7I/L2I-L7I

16

68